Magnetic compass, caravel, astrolabe, sextant, and Mercator’s projection to make it possible for the exploration to happen
Answer:
the four social issues are
1)Social stratification.
3)Economic issues.
3)Social disorganization.
4)Public health.
Answer: Most economists are not concerned that natural resources will eventually limit economic growth. As evidence, they note that the prices of most natural resources, adjusted for overall inflation, have tended to fall over time.
Explanation: Natural resources have fallen overtime because of the increase in technological uses and processes. Due the having the ability to man-make items, the scarcity of a natural resource not being available isn't as concerning.
The floods could wash away all of their crops